Matrix and holder therefor.



w. E". GHALFANT. MATRIX AND HOLDER THEREFOR.

, APPLIGATION FILED O0T.1Z, 1807. 904,55 1 (3.

Patented Nov. 2%, 1908.

- I Sv wemfoz a/zzaaw My;

13); famous outrun sirarns Pllifil lil WILLIAM ELMER- OHALFANT, OlPHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO LANSTON MONOTYPE MACHINECOMPANY, OF PHILADELPHIA, PENNSYLVANIA, A'GORPORATION OF VIRGIN IA.

MATRIX AND HOLDER THEREFOR.

in predetermined fixed position upon their.

holders or supports.

It is well known and understood that it is of the utmost importance thematrices employed in connection with type casting and like machinesshould be accurately adjusted and firmly held in order that they may beproperly presented to the mold wherein the body of the type'is cast, tothe end that the character or part formed in the matrix may occupy apredetermined position or be justitied with relation to the body portionof the type. .WVith this end in view it has long been the practice toform the matrix cavity in a predetermined and fixed position relative totwo of the edges of the matrix block or plate, said edges extending atright angles and constituting gaging surfaces for contacting 'withcorresponding gaging surfaces on the holder, whereby the matrix cavityor the character contained therein is correctly usti tied relatively tosaid holder.

'Various means have been devised for retaining the matrix with itsgaging surfaces in contact with those of the holder as by theapplication of clamps or dogs opposite one or both gaging surfaces, oneor more of said clamps beingprov-ided with beveled or overlappingsurfaeesvserving to hold the matrix down upon its seat. With such appli;ances great care is required and much time consumed. in insuring propercontact between the two sets of gaging surfaces; where a single clamp isemployed the operator must hold the matrix against one gaging surfacewhile applying the clamp to the other, and where two clamps areemployed. working at right angles, one opposite each gaging surface,unie'ss both clamps are moved simultaneously and equally one isSpecification of Letters Patent. Application filed. ember 12, 1907.

Patented Nov. 24., mos.

eriai as. 397,215.

liable to engage and seat in advance of the other and thus arrest themovement before the other gaging surfaces fully contact. Moreover, as itis not feasible for various practical reasons to form the gagingsurfaces on the holder with beveled engaging portions, the matrix isliable to be displaced from its seat, being held down on one, or. atmost, two adjacent edges at right angles to each other.

The present invention has for its objects to facilitate the operationsof inserting and removing the matrix to insure its correct positioningand to secure it against accidental displacement, to which ends itconsists in a novel form of matrix and positioning and clamping devicestherefor as hereinafter fully described, the novel features beingpointed out in the appended claims.

In the accompanying drawings illustra ting a preferred form ofembodiment as applied to the die case of a type casting machine: Figure1 is a perspective View of a die case with the matrix and holder appliedthereto. Fig. 2 is a top view of the matrix, detached. Fig. 3 is a faceview of the matrix holder with the jaws in their open or retractedposition. Fig. t is a rear view of the matrix holder. Fig. 5 is asectional view on the line a-a, Fig. 3. Fig. 6

a perspective of the lever clamping aw' detached.

The same numerals designate like parts in the several figures.

The improvemonts are illustrated in connection with and as applied tothe die case of atype casting machine after the manner disclosed in theapplication of Bancroft and Indahl. Serial No. 235,126, filed Dec. 1,1904, whereof 1 designates the usual die-case frame and 2 the matrixblock or carrier, the latter provided with a seat 3 and gaging surfaces4, 5, for the matrix and a socket 6 for the reception of the centeringpin by which the matrix is located relatively to the mold.

Gaging surfaces 4, 5, are preferably disposed at right angles in planesperpendicular to seat 3, and in a predetermined relation. to

- socket 6, and the matrix 7 furnished with corresponding gagingsurfaces 8, 9, so that when the latter are in contact with thecomplemental surfaces 4, 5, and the centering pin is seated in itssocket 6 the matrix cavity will be presented in justified relation tothe mold.

The present improvements have immediate relation to the means foreffecting, insuring tersecting the planes of the gaging surfaces 4, 5,and forming ,the hypothenuse of a rightangled triangle of which saidsurfaces in said block.

mounted and guided as to permit slight 4 and'5 form the base andperpendicular. The jaw 10 is located at one corner of the elevated seat3, and is secured to one end of a threaded rod 12 extending through anopenin 13 in the block 2 beneath seat 3 and terminating within anopening or recess 14: Preferably jaw 10 is so angular displacement ofits engaging face during the clamping movement, to which end the opening13 is slightly larger than rod 12 at the end nearest the jaw and isenlargei L..eyond that point to permit a limited degree of lateralmotion to the rod. The jaw 10 is also provided with a rib 15 on theunderside at or near the rear edge for engagement with the face of block2, and its forward or inner end is provided with a'rib 16 adapted toenter a guideway '17 in block 2, to form bearing for said jaw and resistvertical movement thereof as the beveled engaging face rides up theincline on the matrix to seat the latter. Disposed and working inopposition to jaw 10 is a second clamping jaw 16 located in the angle atthe intersection of the planes of gaging surfaces 4L, 5. This jaw 16 isbeveled at its engaging edge and carried by a lever or plate 17 providedat or near the opposite end with a pivotpin 18 whose pointed or roundedend is received in a socket formed in the wall of recess 14. At the sameend and below or opposite jaw 16 lever 17 is provided with a beveledflange or projection 19 engaging a seat on block 2 so that when saidlever is pressed towards the matrix projection 19 will operate to drawjaw 16 to position and assist in holding the matrix down upon its seat.

- lyi i 10, jaw 16 having been first retracted by the action of spring21. v

One advantage of this arrangement is that it permits the operator tomanipulate the device with one hand, leaving the other hand free for theremoval or insertion of the matrix. The matrix 7 for use in connectionwith the improved holder is similar to those in common use with thesingle exception that the diagonally opposite corners or edges 23, 2 1,are cut or otherwise formed on lines intersecting the planes of thegaging faces 4-, 5, and beveled to correspond with jaws l0 and 16.

In the preferred form illustrated the matrix is composed of a hexagonalplate of substantially uniform thickness, with opposite edges inparallel, two of said edges 8, 9, stand :g at right angles to form thegaging surfs s, and two beveled to form the gripping .urfaces 23, 24,said last named edges in planes in r secting the planes of the gagingedges 8, 1 It is to be observed, however, that with the exception of thetwo aging surfaces 8, 9, and the gripping surfaces 23, '24, the form ofthe matrix plate as a whole is of secondary importance inasmuch as saidsurfaces together with the back are the only ones involved in the gagingand holding operations, hence in so far as this feature is concerned theform of the plate in other respects is unimportant and may be varied toany extent so long as those gaging and gripping surfaces are retained.Nor is it required that the matrix plates for use in connection with theimproved holder should all be of the same dimensions, it be ingsufficient that the angular relation of the two gaging surfaces beuniform and that the opposite gripping surfaces lie within the range ofaction of the gripping jaws, the latter compensating for variations inthis dimension without interference with the ing function. y

In using the device the operator grasping one end of the frame 1 withthe er and thumb of the same hand turns nut 0 until both jaws 10, 16,are retracted as represented in Fig. 3. With the other hand he drops orplaces the matrix upon bed 3 with the cut away corners 23, 24, oppositejaws 16, 16 and then by reversing the motion of the thu Jo nut causesti; dvance of the jaws. Duringthe first part of this operation nut 20 isretained upon its seat 22 and jaw 16'" in its retractedposition byvirtue of spring 21, while jaw 10 advances and by virtue of the diagonalrelation of its engaging face forces the matrix to slide upon its gagingface orfaces 4, 5, towards the angle of intersection. "When the matrixseats on both of said gaging surfaces the further movement of jaw 10 isinterrupted and jaw 16 is ad "anced until its engaging face contactswiththe matrix when a further movement of the thumb nut causes the twojaws to ,tightly clamp the matrix against its seat 3 without liabilityof disturbing the position. of the matrix relative to its'gagingsurfaces 4-, 5, owing to the fact that the pressure exerted by jaw 10and acting to retain 'the matrix against said. gaging surfaces issuperior to that exerted by the opposing jaw 16 and tending to displacethe matrix; ,hence it follows that if for'any cause the matrix shouldnot be properly seated against both gaging surfaces 4, 5, at the timejaw-16 engages therewith itwill be forced, lld-POSltljOIl prior to-thefinal clampingupon its seatjby the superior pressure' exerted by jaw 10.Although desirable it is not essential that nut 20 should be providedwith a sustaining seat 22, as in such event the jaw 10 could be forcedback against the pressure of spfing 21 for the insertion or removal ofthe'ma-,

trix, as in either case the jaw 10 is advanced -seat and gaglngsurf-(ices in fixed angular two fixed gaging surfaces extending ininterrelation to eachother, and a clamping jaw movable towards the angleof intersection-- of said gaging surfaces and provided. with an engagingface extending in a plane inter secting the planes. of both gagingsurfaces. 3. A holder for type and like matrices comprising a blockprovided w th a seat and secting planes; and a movable jaw provided witha beveled engaging face-disposed in a plane intersecting the planes ofsaid gaging surfaces.

4. A holder for type and like matrices including a'block provided with aseat and two gaging surfaces on intersecting planes; and two opposingmovable jaws, one located at the angle of intersection of the gagingsurfaces and the other, intermediate the planes of'said gagingsurfaces.-

5. A holder for type and like matrices including a seat and twogagingsurfaces at right angles and in fixed relat1on;, and a positioningand clamping jaw movable-at an angle to both gaging surfaceswith-itsengaging face in a plane intersecting the planes of both gagingsurfaces;

6. A holder for type and like matrices provided with a seat, twogagingsurfaces extending in intersecting planes; a clamping jaw movableat an angle to both gaging surfaces with its engaging face in a planeintersecting the planes of both gaging surfaces, and an opposingclamping'ja-w occupying the angle at .the intersection of the planes ofsaid gaging surfaces. T v

7. A holder for type and like matrices including the following elementsin combina- 'tion, to wit; a support or blockpioVidd with a matrix seat.and adjacent gaging surfaces, the latter extending in intersectingplanes and opposing clamping jaws disposed at an angle to said gagingsurfaces.

8. A holder for type and like matrices including the following elements,in combination, to wit; a support or block provided witlra matrix seatand adjacent gaging surfaces the latter lying in intersecting planes;and opposing clamping" jaws disposed and moving at an'angle to saidgaging surfaces andclamping members. 7 '9. A holder for type and likematrices provided with opposing clamping jaws and actuating devicescommon to both jaws'and adapted to advance saidjaws under rela;t-ivelydifferent degrees of pressure.

10. A holder. for type and like. matrices including'the followingelements,-to wit; a matrix seat; two gaging surfaces located inintersectingplanes in predetermined rela} lion. and adjacent to saidseat; two opposed clamping 'jaws' with their engaging-faces in planesintersecting those of the gaging, surfaces and actuating devices forsaid jaws adapted. to excrt relatively different degrees .of pressureupon said jaws.

11 In a holder for type and like matrices the combination of thefollowing elements, towit; a block orsruaport provided with a matrixseat and gaging surfaces extending in transverse planes; a jaw movableatan aifglc. to said gaging surfaces and provided with a beveled engagingsurface extending in a plane intersecting said gaging surfaces, and amatrix engaging the seat and provided on adjacent edges with gagingsurfaces and cut away at the diagonally opposite corner to receive saidmovable jaw.

12. In a holder for type and like matrices the combination of thefollowing elements, to wit; a supporting block provided with a matrixseat and adjacent gaging surfaces the latter in intersecting planes;opposing clamping jaws movable at an angle to said gaging surfaces andprovided with engaging Surfaces lyingin planes intersecting said gagingsurfaces; and a matrix provided provided .with beveled or overhanginglever and-a nut carried by the rod and enwith two gaging surfaces inintersecting planes and having diagonally opposite corners removed toreceive the jaws.

13. In a holder for type and like matrices provided with a seat andadjacent ga g surfaces, and in combination therewit a pair of opposedclamping jaws having their engaging faces in diagonal relation to saidgaging surfaces, and an actuating mechanism including a rod'coupled withone jaw, a lever carrying "the other jaw, and a nut threaded on said rodand engaging said lever intermediate its fulcrum and jaw.

14. In a holder for type and like matrices provided with a matrix seat,gaging surfaces and diagonally disposed and oppositely movable aws andin combination therewith actuating devices for said jaws including a rodcoupled with one jaw, a lever carrying the other jaw, a retractingspring for sai gagingsaid lever at a point intermediate its aw andfulcrum.

' 15. In a holder for type and like matricessuch as described and incombination with the opposing clamping jaws an actuatin mechanismadapted to exert relatively di ferent degrees of pressure on said jawsthe same comprising a lever carryingone aw,-a rod attached directly tothe other jaw and a nut threaded on said rod and en aging said leverintermediate its jaw and fu crum.

16. In a holder for type and like matrices provided with a seat gagingsurfaces and di agonally disposed opposing clamping jaws and incombination therewith an actuating mechanism for said jawsdncluding alever carryin one jaw, a rod attached to the other jaw an provided witha nut engaging said lever intermediate its jaw and fulcrum, a springenga 'ng said lever to retract the latter and a vance the rod and alimiting stop for said nut.

17. A holder for type and like matrices including ablock or supportrovided with a seat and gaging surfaces an in combination therewith adiagonally disposed adjusting and clamping jaw attached to a guiding rodand provided with a bearing rib on its under surface an overhangingbeveled engaging surface and a guiding projection the latter engaging aseat in the "lock beneath said engaging surace.

18. A holder for type 'tIlCl like matrices including a block or supportprovided with a seat and gaging surface. and in combination therewithtwo opposed clamping jaws in diagonal relation to said. qaging surfacesand each provided with overhanging beveled engaging s'urfaces, one ofsaid jaws being attached to a lever provided with an inclined surfaceengaging a bearing on the block beneath said jaw.

19; A matrix for type and like machines consisting of a block or platebearing the figter.

20. A matrix for type and like machines consisting of a plate or blockbearing the fig' urev and provided with two gaging ed es in transverseplanes, and two opposite c amping edges in planes intersecting saidgaging surfaces.

21. A matrix for type and like machines consisting of a plate or blockbearing the figure and provided with two gaging edges 1n tranwerseplanes and two inclined clampin edges in planes intersecting those ofsai gaging surfaces.

22. A. matrix for type andvlike machines consisting of a hexagonal plateor block each edge whereof is in parallel with an opposite edge andbearing the impress of the character on its face. 1

'23. A matrix for type and like machines comprising a plate or block ofhexagonal 4 being bweled and the character impression located onthe faceof said plate or block.

I WILLIAM EhlllElt CHALFANT.

\Vitnesses MORTIMER A. JONES, J. Snnnnns BANC'ROFT.

